I've been using Khan Academy practically since the day it started, and followed Sal Khan's meteoric rise in the world of education, his vision for how we can educate young people better, easier and cheaper, at their own pace, and altering the entire world education system is inspiring. You can watch loads of his lectures and interviews on the website, and even grab a copy of his book 'The One World Schoolhouse'.

It has just undergone a major redesign and the company is growing, not for profit, helped in the beginning with funding from Google and the Bill & Melinda Gates Foundation and is now a little bigger than Sal operating out of his closet in California !!

I was introduced to the Khan Academy by Douglas Mallette, watching one of his lectures on Cybernated Farm Systems and equating the maladies of how we live and produce food, waste and energy on earth with how we could transform it so easily using Mars base technology. I'll probably write more on him and CFS at a later date. But it's good when one inspirational character leads you to another, and there are plenty around, even today, you just have to know where to look. First piece of advice - "switch off the tele" !